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Home >> Lexus >> 2020 >> UX 200 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 31 (Smart Access System W/ Push-Button Start (Start Function) (Diagnostic Codes & Symptom Tests (1 Of 2)) (Hybrid)) >> SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function, HV Model) >> DTC B2277: Detecting Vehicle Submersion [10/2018 - ] >> Procedure

DTC B2277: Detecting Vehicle Submersion [10/2018 - ]: Procedure

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  1. CHECK WATER INTRUSION 
    1. Check that the certification ECU (smart key ECU assembly), its ground area and wire harnesses have no signs of water intrusion.

      Result

      Result Proceed to
      No sign of water intrusion found A
      Signs of water intrusion found B

    Result: 

    A 

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [10/2018 - 07/2022]  Refer to  REMOVAL [07/2022 - ] 

    Result: 

    B 

    TAKE MEASURES AGAINST WATER INTRUSION AND REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to  REMOVAL [10/2018 - 07/2022]  Refer to  REMOVAL [07/2022 - ] 

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